hello everyone i was just wondering what size tank everyone is running for thier tires for airing up after a day of wheeling. right now i have a slime pump that gets the job done but would like it to be more efficent and this year for xmas i got a compressor that can push out 110 psi. so i thought about getting a secondary tank in general for compressor work and also when i go wheeling. so i wasnt sure what size tank i would need for 35" with some air to spare just in case and from about 15 or 20 psi. im sure theres a mathematical equation out there but im really not all that smart and was wondering what you all where doing out there. also is there a way of even getting the slime compressor to fill this tank if it wasnt enough i was thinking about a 5gal or 7gal tank. i appreciate the advise in advance thank you

 

does anyone have an idea?

 

Well...I've got a 50 dollar car battery powered pump....it gets the job done and comes with a snazzy bag. Got it off Amazon. While airing up I reconnect sway bars and BS with the guys I wheeled with. Sure, it's not fancy...but it's just air.

 

yea thats pretty much where im at im jusy looking for a faster way of doing it and was wondering how beneficial is the aux tank i see a few people with and was wondering the pros vs cons. thanks for the reply

 

If you are just wanting it for your tires, there isn't much of a need for an auxiliary tank.

However, once you start talking about wanting to run pneumatic tools on the trail... now thats when the fun discussions start.

 

thats what i figured thats why im trying to get some ideas. i cant see giving up the space and weight just for airing my tires up and right at this moment there is'nt a real need for pneumatic tool on the trail but im sure someday il have em so im guessing thats what everyone is useing theres for then?

 

This is a great thread also, mainly cause I have the same question. I am not running tools cause I have mechanical skills of a toddler. However, I want something mounted under the hood that will inflate quick. I figured a tank would be a good idea but sounds like a tank is only for tools.... yes no or mabye so.

 

well from what ive gathered from mutiple threads is people do instal those cheapy air compressors under the hood and they work great. but when i get home from off the trails it take secounds to do all four tires with my compressor shooting 100 plus psi into them so i thought about getting a tank to get this same goal but am unsure of how much of a tank i would need to do this and if it would be possible for my little aircompressor to fill up this tank while im still playing and when i need to air up its full and ready to fill the tires in secounds compared to about 5min on each tire.

 

The thing to remember here, is that most of those little tanks < 2 gallons, don't have enough volume to air up a large tire. So you compressor will still kick in.

5 minutes per tire seems poor. What compressor do you have?

My ARB high rate compressor can take my 35s from 12psi to 30psi in only a couple of minutes, nothing near 5 minutes.

All an auxiliary tank is going to allow you to do is go for longer with the compressor not running, thusly artificially (and temporarily) increasing your CFMs. If you could mount a tank large enough to fill your entire tire, then this would be of benefit. However, the tank would have to be pretty large. Probably too large to fit under your hood. Perhaps tailgate mount?

If you are displeased with compressed air, a lot of guys go with CO2.

 

thank you for the reply, the compressor i am using right now is the slime comressor you get at walmart, its the one for trucks. it gets the job done but id like to see some improvements. i was thinking about getting a 5 gal or 7 gal tank to throw in the back for when i need it i didnt plan on mounting this under the hood. i was just ondering how big of a tank would i need for 4 tires that are 35"s going from 20 psi up to 34 psi. and my compressor has a small 2gallon tank that stays in my garage that can get up to 120 psi. so it got me thinking how big of a tank wound i need with the air been at 120 psi in one of these tanks would be big enough for my tires.